Paradyne COMSPHERE 3600 Series - Manual (Page 23)

Installation
2-7 3000-A2-GB41-40 May 1998
Independent Mode
If you want to operate in Independent mode and you
plan to use either one or two – 48 Vdc power sources,
configure the option straps as shown in
Table 2-3 .
Table 2-3
Settings for Independent Mode
S1 Raised
S2 Raised
S3 Raised
S4 Raised
S5 Raised
To set the option straps for Independent mode of
operation:
"
Procedure
1. Loosen the screws on all five straps (S1 through
S5) on the CO Power Unit’s backplane so that the
screws are not touching the contacts. (Two
complete turns will suffice.)
Redundant Mode — One Source, One Cable
If you want to operate in Redundant mode and you
plan to use a single – 48 Vdc power source and a single
input power cable, configure the option straps as shown in
Table 2-4 .
Table 2-4
Settings for Redundant Mode
Using a Single – 48 Vdc Power Source
and a Single Input Power Cable
S1 Lowered
S2 Lowered
S3 Lowered
S4 Lowered
S5 Lowered
To set the option straps for Redundant mode of
operation using a single – 48 Vdc power source and a
single input power cable:
"
Procedure
1. Tighten the screws on all five straps (S1 through
S5) on the CO Power Unit’s backplane. Make sure
that the screws are securely touching the contacts,
but do not screw the straps too tight because doing
so can damage the equipment.
Redundant Mode — Two Cables
If you want to operate in Redundant mode and you
plan to use either a single – 48 Vdc power source and two
input power cables or two separate – 48 Vdc power
sources and two input power cables, configure the option
straps as shown in
Table 2-5 .
Table 2-5
Settings for Redundant Mode with Either
a Single Power Source and Two Input
Power Cables, or Two Separate
Power Sources and Two Input Power Cables
S1 Lowered
S2 Lowered
S3 Lowered
S4 Raised
S5 Raised
To set the option straps for Redundant mode of
operation with either a single power source and two input
power cables, or two separate power sources and two
input power cables:
"
Procedure
1. Tighten the screws on the S1, S2, and S3 straps on
the CO Power Unit’s backplane. Do not screw the
straps too tight because doing so can damage the
equipment. Make sure that the screws are securely
touching the contacts. Then loosen the screws on
the S4 and S5 straps. (Two complete turns will
suffice.)
NOTE
In either Independent or
Redundant mode of operation,
the S4 and S5 straps on the
backplane must be raised
(loosened) when two separate
– 48 Vdc power sources are
used to prevent operational
problems and voltage
incompatibilities.